Enterostatin suppresses food intake in rats after near-celiac and intracarotid arterial injection.

Enterostatin suppresses food intake in rats after near-celiac and intracarotid arterial injection.
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近腹腔和颈内动脉注射后,肠抑素抑制大鼠的食物摄入。

DOI:
10.1152/ajpregu.2000.278.5.r1346
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发表时间:
2000
期刊:
American journal of physiology. Regulatory, integrative and comparative physiology
影响因子:
--
通讯作者:
York,DA
York,DA
中科院分区:
--
文献类型:
--
作者:
Lin,L;Bray,G;York,DA

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肠抑素(Ent)在外周和中枢给药后选择性地抑制膳食脂肪的摄入。为了进一步研究Ent的作用部位,我们比较了在适应高脂肪饮食的大鼠中动脉内注射Ent(腹腔动脉附近)、颈动脉或静脉注射Ent的喂养反应。近腹腔动脉注射后,有立即剂量依赖性(0.05-13.5 nmol)抑制食物摄入发生在5分钟内过夜禁食大鼠,持续长达20分钟。颈动脉Ent有类似的,立即剂量相关的反应,抑制作用是持久的。对静脉内Ent的反应仅在最高剂量下明显(13.5 nmol),并延迟至少120分钟。用辣椒素预处理,这会导致迷走神经感觉神经元变性,消除了对近-这些结果为外周Ent的胃肠道作用部位和中枢作用部位提供了进一步的证据提示对静脉内Ent的延迟反应可能反映了该肽结合或缓慢摄取到中枢神经系统。
Enterostatin (Ent) selectively suppresses the intake of dietary fat after peripheral and central administration. To further investigate the site of action of Ent, we compared the feeding responses to Ent injected intra-arterially near the celiac artery, into the carotid artery, or intravenously in rats adapted to a high-fat diet. After near-celiac arterial injection there was an immediate dose-dependent (0.05–13.5 nmol) inhibition of food intake occurring within 5 min in overnight-fasted rats that lasted up to 20 min. Carotid arterial Ent had a similar, immediate dose-related response, and the inhibitory effect was long lasting. The response to intravenous Ent was only evident at the highest dose (13.5 nmol) and was delayed for at least 120 min. Pretreatment with capsaicin, which causes degeneration of vagal sensory neurons, abolished the inhibitory responses to near-celiac Ent but not to intravenous or intracarotid Ent. These results provide further evidence for both a gastrointestinal site of action for peripheral Ent and a central site of action for intracarotid Ent and suggest that the delayed response to intravenous Ent may reflect either binding or slow uptake of this peptide into the central nervous system.
肠道内分泌细胞中的肠抑素——免疫细胞化学证据
DOI: --
发表时间: 1996
期刊: Peptides
影响因子: 3
作者:
M. Sörhede;C. Erlanson‐Albertsson;J. Mei;T. Nevalainen;A. Aho;F. Sundler
通讯作者: F. Sundler
迷走神经-中枢神经系统相互作用调节对外周肠抑素的进食反应。
DOI: 10.1002/j.1550-8528.1994.tb00101.x
发表时间: 1994
期刊: Obesity research
影响因子: --
作者:
Tian,Q;Nagase,H;York,DA;Bray,GA
通讯作者: Bray,GA
十二指肠内给予大鼠肠抑素的作用:抑制食物。
DOI: --
发表时间: 1996
期刊: Obesity Research
影响因子: --
作者:
J. Mei;C. Erlanson‐Albertsson
通讯作者: C. Erlanson‐Albertsson
迷走神经切断术减弱了肠道营养物引起的假喂养的抑制。
DOI: 10.1152/ajpregu.1991.260.3.r503
发表时间: 1991
期刊: The American journal of physiology
影响因子: --
作者:
Yox,DP;Stokesberry,H;Ritter,RC
通讯作者: Ritter,RC
辣椒素可以消除大鼠的禁脂喂养,但不能取消禁糖喂养。
DOI: 10.1152/ajpregu.1989.256.6.r1232
发表时间: 1989
期刊: The American journal of physiology
影响因子: --
作者:
Ritter,S;Taylor,JS
通讯作者: Taylor,JS